Handle.



J. P. DURKIN Patented July 27, 1909 WI T/VESSES:

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ATTORNEY,

UN TED STATES PATENT OFFICE.

JOHN P. DURKIN, OF PHILADELPHIA, PENNSYLVANIA.

HANDLE and State of Pennsylvania, have invented an Im roved Handle.

he handle of my invention is vdesigned for fitting and turning a shaft or hub, and to this end it has means for varying the size of its socket to secure a close fit or tight engagement. The imperfect fit and Wear of usual constructions are annoying and injurious. My improvements permit all lost motion to be taken up so as to avoid the striking action that takes place in turning a handle loose on a shaft, ermits the ad'ustment of the socket so t at it will ma e a closefit with shafts of various sizes, and

provides ready means for clamping the handle to the shaft.

In the accompanying drawings, Figure 1 is a sectional elevation of a handle embodying the invention applied to a shaft; Fig. 2 is a plan view of a section of a handle embodying the invention; and Fig. 3 is a perspective view of a wedge used in the invention.

As illustrated in the drawings, the invention is embodied in a handle 1 containing a downwardly tapering socket comprising the part 2 for rece1ving the end of the shaft 3,

and the part 4 for receiving the wedge 5, inclined surfaces 6 at the rear of the socket engaging like surfaces 7 of the-wedge.

A hub 8 is formed in the handle, lies between the surfaces 6 and projects into the socket part 4, the wed e 5 having the concavity 9 within which the hub lies. A screw 10 runs in a threaded hole 11 formed in the hub, is provided with the wings 12 for turning it and has a ring or circular flange 13 which engages a curved groove 14 forming a Specification of Letters Patent.

Application filed April 14, 1908.

Patented July 27, 1909.

Serial No. 426,960.

yoke within the concave surface of the wedge. By revolving the screw, it moves longitudinally while its flange revolves in the groove in the wedge, the latter being lowered or elevated thereby to tighten, fasten or release the handle on the shaft.

Having described my-invention, I claim:

1. A handle having a socket with an inclined surface, within said socket a wedge having an inclined surface engaging said inclined surface first named to guide and hold said wedge in various positions in said socket, and a screw adapted for adjusting the position of said wedge.

2. A handle having a socket, a hub extending into said socket, a wedge movable within said socket, and a screw engaging said hub and wedge, said screw adjusting and holding said wedge.

3. A handle having a socket with inclined surfaces, a projection having a threaded hole between said surfaces, a screw movable in said hole and having a flange, and awedge having inclined surfaces engaging said inclined surfaces first named, a recess for receiving said projection, and means for engaging the flange of said screw.

4. A handle having a socket withan inclined surface, a wedge having an inclined surface en aging and movable along the inclined sur ace of said socket, one of said' partshaving a yoke and the other a threaded ole, and a screw engaging said hole, said screw having a flange engaging said yoke.

In witness whereof I have hereunto set my name this 6th day of April, 1908, in the presence of the subscribing witnesses.

JOHN P. DURKIN. 

